/* 重置和基础样式 */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: #333;
  background-color: #f9f9f9;
}

a {
  text-decoration: none;
  color: #4285f4;
}

button {
  cursor: pointer;
}

/* 容器 */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* 工具类 */
.text-center {
  text-align: center;
}
.text-right {
  text-align: right;
}
.text-left {
  text-align: left;
}

.mt-20 {
  margin-top: 20px;
}
.mt-40 {
  margin-top: 40px;
}

.mb-20 {
  margin-bottom: 20px;
}
.mb-40 {
  margin-bottom: 40px;
}

/* 响应式布局辅助 */
@media (max-width: 768px) {
  .hide-mobile {
    display: none;
  }
}
